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netdesignr/jsbin.kororer.js

Last active October 17, 2018 12:47
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Reverse Integer// source https://jsbin.com/kororer
Raw
jsbin.kororer.js
/*
* Reverse Integer using Javascript ES6
* Built in JS methods: toString(), split(), reduce(), Math.sign()
*/
const reverseInt = (n, rev='', final) => {
final = n.toString().split('').reduce((acc, inv) => rev = inv + acc, '');
return parseInt(final) * Math.sign(n);
}
console.log(reverseInt(15)); // 51
console.log(reverseInt(981)); // 189
console.log(reverseInt(500)); // 5
console.log(reverseInt(-15)); // -51
console.log(reverseInt(-90)); // -9
console.log(reverseInt(0)); // 0
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